Illium - Liara: The Observer

Three terminals need to be hacked. They are all located on the southern portion of the map, where the Taxi Stand, Memories of Illium, Gateway Personal Defense, Tracking Office, and Baria Frontiers are located. After a terminal is hacked, Shepard has 60 seconds to find the corresponding vulnerable system to upload the data to Liara. Once a terminal is hacked, a number in the lower-right corner will indicate the distance from the vulnerable system. Once all three terminals are hacked, you will receive 5 Renegade points and Liara tells Shepard to return to her office. Talking to Liara again completes the mission and unlocks the follow-up mission: Illium: Liara: The Observer.

The first terminal can be found near the Tracking office, its corresponding system is located on the left of Baria Frontiers.

The second terminal is located in front of Gateway Personal Defense and its corresponding system is located behind Memories of Illium.

The third terminal is behind Gateway Personal Defense and its corresponding system is just on the right of the Tracking Office.